Bead strip attaching press



Sept. 13, 1932- J. R. lLEMING ET AL BEAD STRIP ATTACHING PRESS Filed Feb. 6, 1931 4 Sheets-Sheet 1 2%5f07f5 w iwf M MMV Sept. 13, 1932.

J. R. FLEMING ET A1.

BEAD STRIP ATTACHINGxPRESS Filed Feb. 6, 1931 4 Sheets-Sheet 2 Sept l13, l932 J. R. FLEMING ET AL 1,876,898

BEAD STRIP ATTACHING- PRESS Filed Feb. .6, 1951 4 Sheets-Sheet 3 Sept- 13 1932. .1. R. FLEMING ET AL BEAD STRIP ATTASHINS PRESS 4 Sheets-Sheet 4 Filed Feb. 6, 1931 i? i 11111111111111111 z f:

Patented Sept. 13, 1932 narran' STATES 4PATENT @Fries JOHN R. FIiEMING, OF CLEVELAND, AND EDMUND'M. WNEGAR, OF WILLOUGHBY, OHIO,V ASSIGNORS TO THE OHIO RUBBER COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO ,BEAD STRIP ATTACHING PRESS This invention relates to machines of the kind known as punch presses, and more particularly to a machine of this type for attaching covering or sheathing material to flange or bead portionsof a body, such as a vehicle running board. 1

An object of the invention is to provide an improved machine of the kind mentioned for rapidly anduniformly attaching covering or sheathing material in strip or sheet form to a portion of a preformed body.

Another object of this invention is to provide a machine of the kind mentioned, having a set of punches adapted to be moved into engagement with covering material to secure the same to a body by pressing portions of the covering material into openings in the body. v

Another object'of this invention is to provide a machine of the kind mentioned, in which sets of punches having intersecting paths of movement are actuated in succession to secure covering material to a body.

A further object of this invention is to provide a machine of the kind mentioned, in which sets of Vpunches havingk intersecting paths of movement are adapted to be moved into engagement with a sheet metal member to secure the same to a body.

The invention may be further briefly .summarizcd as consistiiLgF in certain novel combinations and arrangements of parts hereinafter described and `particularly set out in the appended claims.

In the accompanying sheets of drawings,

Figure l is a side elevation of a punch press embodying our invention.

Fig. 2 is a sectional plan view taken on line 2 2 of Fig. 1.

Fig. 3 is a sectional line 8-3 of F ig. 1.

Fig. 4 is a transverse sectional elevation plan view taken on of the slide taken on line 4 4 of Figs. l and 3.

Fig. 5 is a transverse sectional elevation of the slide taken on line' 5-5 of Figs. l and 8.

Fig. 6 is a partial sectional elevation taken on line 6--6 of Fig. .2.

Fig. 7 is a partial sectional elevation showing one of the special corner punches and Serial No. 514,025.

illustrating the operation performed thereby.

Figs. 8 and 9 are detail elevational views of one of these special corner punches.

Fig. l0 is an endelevational view of a running board in inverted position withV the bead strips in place ready for the punching operations. rg

F ig. 11 is a transverse sectional elevation taken at a point intermediate the ends of the samerunning board after the `punching operations have been performed thereon.

Fig. 12 is a detail view showing the shape s of the slide actuating cam, and

Fig. 13 is a similar detail view showing the shape and relative positions of the punch actuating cams.

In the drawings, to which detailed refe ence will presently be made, we have shown our invention embodied in a machine of the punch press type for rapidly and uniformly attaching metallic covering material in strip form, to flange or bead portions of preformed bodies, such as composite vehicle running boards,gbut it should be understood that our invention may be embodied in various machines for performing similar operations on other materials andl on bodies of other shapes or forms. i

Before proceeding with a detailed description of the machine of our invention, brief reference will be made to the vehicle running board, which, in this instance, constitutes the preformed body, and to the operations to be performed thereon. This running board, which is disclosed in United .States Patent No. 1,784,781, granted December 9, 1930, comprises a sheet metal body 15 having flanges 16 and 17 depending, respectively, along the b( ck and ends thereof for reinforcing the running board and securing the same to portions of 'the vehicle, and a rubber covering 18 vulcanized to the metal body so as to extend down upon the depending front flange 19. Atthe point of connection of the back and end flanges with the metal body the metal'is bent to form the upstanding longitudinally extending beads 20 and 2l. The rubber covering which is vulcanized to the metal body covers substantially the entire upportions over these beads.

per surface thereof leaving exposed the upstanding beads 2O and 21, against which, edges of the covering abut. To pro-vide a inish for these upstanding beads such that they Will resist wear and corrosion, and will impart to the board an attractive appearance, they are fitted respectively with covering lor sheathing members 22 and 23. These members are or" suitable material such as chromium plated zinc, and are applied to the beads by means of the press which we have devised. In securing these members to the respective beads, portions oi' the members are bent or crimped around portions of the running board body by successive operations performed by the sets of punches-otI the press now to be described in detail.

In-general this press comprises a :trame 24, which supports a bed plate 25 in substantially horizontal position, and a reciprocable slide 26 which is guided by the portions of the frame uprights 27 extending above the bed plate. A die 28 which is secured to the bed plate 25, is provided with a recess of such sha-pe and form as to receive a running board in an inverted position, as shown in Fig. 2 orn the drawings, ready to be operated upon by the sets or" punches which are moved into engagement with the workin succession.

Before the running board is placed in the recess' of the die, the strips 22 and 23 are applied to the beads 2O and 21 by the press operator. These strips, as shown in Figs. 10 and 11 of the drawings, are somewhat rounded in cross-sectional shape to correspond with the rounded portion of the upstanding beads which they are to cover. In applying the strips to the beads of the running board, the operator iirst hooks the rounded portion of the bead strip 22 over the upstanding bead 20 extending along the rear edge of the running board body. In a similar manner the operator then applies the bead strips 23 to the end beads 21, by hooking their rounded As indicated in Figs. 10 and 11 that end of each bead strip 23 which is nearest the rear flange 16 of the runnin(r board, is formed with an extension or tailportion 29 which overlaps the extreme end portion of the previously applied bead strip 22. When these strips have been applied to the rear and end beads of the running board in the manner described, they will occupy the relative positions shown in Figs. 6 and 10, with the securing tangs or tongues 30 of the bead strip 22 registering with the longitudinally spaced slots 31 provided in the rear flange 16 ot the running board body, and with similar securing tongues 32 of the end bead strips 23 registering with the spaced slots 33 provided in the end flanges 15 of the running board body.

When the bead strips have been applied to the ruiming board in the manner just described, the operator places the running board in the recess of the die 28 in inverted position, as indicated in Fig. 2, ready tor the punching operations to be performed thorevon. IV hen the running board is in position across the ends of the die. The horizontally `movable punches34 and 35 are so arranged L that when the ends of these punches are moved laterally into the die recess they will engage the tongues 30 and 32 and bend the same inwardly through the slots of the running board flanges. As shown in Figs. 2 and 6, the punches 34 and 35 are pivoted, respectively, to collars 37 and 38. The collars 37 are keyed to a rock-shaft 39 which is supported in bearings 39 and which extends along a side edge of the die recess, and similarly the collars are keyed to rock-shafts 40 which are supported in bearings v40 and which extend transversely near the ends of the die recess. The rock-shafts 39 and 40 are connected together at their adjacent endsI by the interengaging f' levers 41 and 42, so that upon rotation .of the shafts 4() by the application of force to the levers 43 secured thereto, the rock-shaft 39 will be rotated to actuate the punches 34 simultaneously with the actuation of the punches 35.

'Ihe slide 26 which, as already indicated, is guided by the frame uprights 27, is adapted to be moved into cooperating position with the die 28, and into engagement with the running board placed in the recess of the latter by the operator. This slide is provided with a substantially rigid body member 43, which extends between the traine uprights 27 and may be constructed as av casting, or may be made up of parts welded or otherwise secured together, as shown in Figs. 4 and 5. A pres-- sure plate 44 is loosely' secured to the slide body 43, at spaced points by means of the studs 45 which are screwed into the pressure plate and are slidable in openings provided in the slide body. Coil springs 46 surrounding these studs resiliently press the pressure plate away 'from the slide body, so that when the slide is moved into engagement with the running board in the die recess, the pressure plate will engage the back of the running board with a firm but somewhat yielding pressure, and will accommodate itself to the running boards even though theymay be slightly irregular in size or shape. T he slide is also provided with a punch plate 4.7 which is movable relative to the slide body and the pressure plate, and which carries a plurality of vertical punches 48 secured in spaced relation along a side edge thereof, and a plurality of vertical punches49 secured in spaced rela-tion across the ends thereof. Studs 49 which are secured to the punch plate and are slidable in openings provided in the slide body 43, guide the movement of the punch plate relative to the slide body, so as to maintain these parts in proper relation at all times. Coil springs 50 surrounding the studs 49T tend to Dress the punch plate away from the slide body, so as to retract the vertical punches 48 and 49. Y

For moving the slide 26 toward the die 28 and into engagement with the running board arranged in the recess thereof, we provide a main shaft l which is adapted to be driven by an electric motor 52 through suitable gearing 53. A pair of cams 54 secured to the shaft 5l engage the. columns55 of the slide body upon rotation of the shaft, and press the slide downwardly against the work. These columns, as shown in Fig. 4, are secured to the slide body and extend through openings provided in the punch plate 47. lf desired contact rollers 56 0f appropriate diameter' may be provided at the upper ends of these columns to reduce friction between the latter members and thecams 54. Y

lit will be seen from the arrangement thus far described that when the shaft 5l is rotated the cams 54'will lower the slide 26, causing the pressure plate 44 to engage the back of the runningl board body. Further movement of the slide in the downward direction causes the spring 46 to be slightly compressed, so that the running board will be firmly held in place in the die recess. rlhese springs and the relative movement provided between. the pressure plate and the slide body enable the press to accommodate and operate upon the running boards `regadless of variations occurring in the size or shape thereof. v i

t* the ends of the slide 26 we provide guide sleeves 57 in vertical alignment with the levers 43 of the rock-shafts 40. Verticall push rods 58 for actuating the rock-shafts are slidable in these sleeves and are guided thereby. l/Vhen the `slide is moved dewiwardly toward the die 28 the contact caps 53 at the lower ends of the push rods engage the levers 43, and upon further downward movement of the silde the push rods slide through the sleeves 57 without exerting any pressure upon the levers 43. However, after the slide has reached the limit of its downward movement and the pressure pad 44 has firmly engaged the running board, the' cams 59 engage the rollers 6() of the push rods 58 and move the latter downwardly to actuate the levers 43. Movement of these levers causes the rock-shafts and the rock-shaft 39 to be rotated in their bearings. The rotation of these rock-shafts causes the punches 34 and 35 to be moved into the die recess to bend the tongues 30 and 32 of the bead.

strips inwardly through .the corresponding slots .provided in the running board flanges. Immediately after the horizontal punches have been actuated by the cams 59, the retract ing springs 61 having opposite ends thereof secured to the rock-shaftlevers 62 which eX- tend downwardly through openings in the bed plate 25, cause the rock-shafts to be rotatedl in the reverse direction to retract the punches 34 and 35 from the slots of the running board flanges.

Upon further rotation, the shaft 51`causes the cams 63 torengage the rollers 64 of thel columns 65 and to thereby press the punch plate 57 downwardly towardthe slide body 43 against the action of the springs 50 interposed therebetween. The downward movement of the punch plate causes the punchesl 48 and 49 carried thereby to engage the tongues 30 vand 32 of the bead strips which, as explained above, have already been bent inwardly by the horizontal punches, and to bend or deflect the inner ends of thesetongues downwardlyY so as to clinch them around the edges of the slot openings, as shown in Figs.

l4, 6 and ll of the drawings.

Immediately after the cams 63 have moved the punch plate 47vdownwardly, they release the rollers 64, whereupon the springs 50 move the punch plate upwardly away from the slide body thereby retracting the punches 48 and 49 out of engagement with the work. It will be understood, of course, that during the period of time that the horizontal and vertical punches are being actuated by the cams 59 and 63, the cams 54 will retain. the slide and the pressure plate 44 in their lowermost position, rmly holding the work in place in the die recess. It will also be seen from the arrangement described that the horizontal punches 34 and 35 are actuated first by the cams 59 and are retracted by the springs 61 before the vertical punches are actuated by the cam v63. Likewise, the vertical punches 48 and 49 after having been actuated by the cams 63, are retracted by the springs 50 before the cams 54 allow'the slide to be moved upwardly away from the work by the slide retracting springs 66 and the counterweight 67.

In Fig. l2 of the drawings we haveshown the shape or outline of the slide actuating cams 54, and in Fig. 13 we have shown the shape of the punch actuating cams 59 and 63, and also the angular position of the latter cams on the shaft 5l with respect to the cams 54. From these cam outlines and arrangements it will be readily seen how the slide is Vheld in its lowermost or work-engaging position bythe cams 54 during the time that the horizontalpunches and vertical punches are actuated in succession by the cams 59 and 63.

It should be noted that, as shown in Figs. l0 and 11 of the drawings, that the end ,portion of each bead lstrip 23 which follows the curvature of the front flange 19, is provided With a flange-like tongue or extension 68. rlhis extension must be bent around the edge 69 of the depending front flange 19, and to perform this operation simultaneously with the actuation of the vertical punches, we have constructed the corner punches 70 of special form, as shown in Figs. 7, 8 and 9, so that they will accomplish this result. These punches are pivoted at their upper ends to the punch plate 47 and each punch is provided near its lower end with a rounded shoulder portion 7l. When the punch plate 47 is moved downwardly by the cams 63, this rounded shoulder portion will engage the inclined surface 72 of the pivoted pawl 7 8 and cause the punch 7 O to be swung laterally upon its pivot as it descends. Each of these punches is also provided near its lower end with a depending relatively thin flange portion 74, and additionally, each .punch is provided with a laterally extending ear portion just above this flange portion. As the punch plate descends the flange portion 74 engages the extension 68 of the bead strip 23 and bends it downwardly around the edge 69. Simultaneously with its downward movement the punch 70 is deflected laterally by the engagement of the shoulder 7l with the inclined face 72, and this lateral movement causes the ear 75 to bend the exten-sion 68 further around and under the edge 69 of the front flange. Continued movement of the punch plate in the downward direction causes the flange. 7l of the punch 70 to engage the tongue 76 of the bead strip 23, which has already been bent inwardly by one of the horizontal punches.

The corner punches 7 O are normally held in retracted position by means of coil springs 77 arranged in openings of the slide body. Upon upward movement of the punch plate 47, after the cams 68 have released the rollers 64;, the springs 77 cau-se the punches 7 O to be swung toward their retracted position so that the ears 75 will clear the edge 69 of the front flange of the running board when the slide is moved upwardly to release the work.

If the character of the work being performed is such that adjustment of either the slide or the punch actuating means should be desirable, such adjustment can be made by removing one or more pairs of the rollers 56, 60 and and substituting other rollers or" a slightly different diameter, lt will readily be seen that if rollers of larger diameter are substituted for those shown, the slide will be moved closer to the die 28 and likewise the punches will be moved farther into the die recess. In addition to this, further adjustment of the. actuating means forthe horizontal punches can be made by removing the contact caps 58 of theV push rods 58 and substituting other caps of different proportions.

-Y If desired our press may be provided with a suitable limit switch or other control means, so that when the operator starts the press, the shaft 51 will make but one complete revolution and will then be automatically brought to a stop to permit the operator to remove the finished piece of work and substitute another piece to be operated upon by the press.

lt will be seen from the arrangement of structure which we have described, that in addition to means for securely clamping and holding the work, our improved punch press is provided with sets of punches adapted to be actuated by cams in such a manner that Vfirst one set of punches will press portions of covering material through openings of a body, and thereafter the other set of punches will operate upon those same portions of the covering material to clinch the same and securely attach the covering material to the body. In other words, our punch press involves the use of sets of punches which have intersecting paths of movement, and which are actuated successively to operate on portions of covering material to thereby secure the same to a body.

While we have illustrated and described the device of our invention in a detailed manner, it should be understood, however, that we do not intend to limit ourselves to the precise details and arrangements of structure illustrated and described, but regard our invention as including such changes and modifica tions as to not involve a departure from the spirit of the invention and the scope of the appended claims.

Having thus described our invention, we claim:

l. In apparatus of the character described, the combination of supporting means adapted to receive a body having a portion to which a metallic strip is to be applied, pressure pad means for holding said body against said supporting means, means for moving said pressure pad means into engagement with said body, a plurality of punches for pressing portions of said strip into strip-securing engagement with said body, and automatically operable means movable in timed relation with respect to the movement of said pressure pad means for actuating said punches.

2. In apparatus of the character described, the combination of supporting means adapted to receive a body having a portion to which a metallic strip is to be applied, pressure pad means for holding said body against said supporting means, means for moving said pressure pad means into engagement with said body, a plurality of sets of reciprocable punches, for pressing portions of said strip into strip-securing engagement with said body, supporting means for said punches arranged so that the path of movement of one of said sets intersects the path of movement of another of said sets, and means for actuating said sets ofpunches successively in timed relation with respect to the pressure pad means.

3. In apparatus of the character described,

movement of said the combination of supporting means adapted Vmovement for pressing portions of said stripY into strip-securing engagement with said body, and cam means for actuating 'said punches while said pressure pad means lis in engagement with said body.

ll. In apparatus of the character described, the combination of relatively movable platens `adapted to press therebetween a body having a portion to which metallic covering is to be applied, a plurality of punches associated with one of said platens for pressing portions of said covering through openings of said body, a set of punches associated with Vthe other of said platens for operating on the portions of said covering which havel been pressed through said openings, and means for actuating said sets of punches in succession.

5. In apparatus of the character described, the combination of relatively movable platens adapted to presstherebetween a body having a bead portion-to which metallic covering is te Vbe applied, a plurality of punches associ. ated with one of said platens for pressing portions of said covering through openings of said body, a set of punches associated with the other of said platens for operating on the portions of said covering which have been pressed through said openings, and cam means for actuating said sets of punches inv succession.

'ln apparatus of the character described, the combination of stationary and movable platens adapt-ed to press therebetween a body having a portion to which metallic covering is to be applied, means for actuating the movable platen, a set of punches associated with the stationary platen for pressing portions of said covering through openings in said body, means for actuating said set of punches, a second set of punches associated with the movable platen for operating on the portions of said covering which have vbeen pressed through said openings, and means for actuating said second set of'punches.

7. In apparatus of the characted described,

the combination of stationary and movable platens adapted to Vpress therebetween a body having a portion to which metallic covering is to be applied, means for actuating the movable platen, a set of punchesassociated with the stationary7 platen for pressing portions of said covering through openings in said body,

means including a rotatable shaft for actu-l ating-said [setv of punches,ffasecond setfof punches associated y withthemovable :platen j'ferioperating on the portions of'said coveryingvvliich have been pressed throughfsaid op iings'and meansy for ,actuating'said' secondsetof'punches." v

8, lI apparatusoftlie character described, y

the'V combination of stationary and* movable platens adaptedv to press therebetween a body having a portion lto which metallic cover able platea-i, 1ra set of punches associated with a second set ofpunches `foi` 'operating on the portions ,of said. covering which'have' been stationary platen "for 'pressing' portions 75' fte app-lied, means for `actuating,the in'ovi pressed Qthrughsaid openings, mounting` means ,for"'*th'e second setof punches,'said mounting means being'carried by the movi able platen and being movable relative thereto, and means for moving said mounting means to actuate said second set of punches.

' 9. In apparatus of the character described,

the combination of stationary and Vmovable platens adapted to press therebetween a body having a portion to which metallic covering `is to be applied, means for actuating the movable platen, a s-et ofpunches associated with the stationary platen for pressing portions of said covering through openings in said body, means including a rotatable shaft for I actuating said set of punches, a lsecond set of punches Aassociated with the movable platen forcperating on the portions of said covering vwhich have been pressed through said openings, mounting means for the second set of punches, said mounting means being carried by the movable platen and being movable relative thereto, and means for moving said mounting means to actuate said second set of punches.

l0.` In apparatus of the character described, the combination ofielatively movable platens adapted to press therebetween a bodyhaving angularly disposed portions to which metallic strips are to be applied, sets of punches associated with one of said platens for pressing portions of said strips through openings in the respective body portions, means for actuating said setsy of punches including angularly disposed rotatable shafts, and means for rotating said shafts.

11. In apparatus of the character described, the combination of relatively movable platens adapted' to press therebetween a body having angularly disposed portions to which metallic strips are to be applied, sets of punches associated with one of said platens for pressing portions of said strips through openings in the respective body portions, means for actuatingv said sets of punchesincluding angularly disposed rotatable shafts, and interengaging means operably connecting said rotatable shafts.

12. In apparatus of the character described, the combination of stationary and movable platens adapted to press therebetween a body having a portion to which av metallic strip is to be applied, cam means for actuating the movable platen, a set of punches associated with one of the platens for pressing portions of said strip through openings in said body, cani means for actuating said set of punches, a second set of punches associated with the other of said platens for operating on the portions of said strip which have been pressed through said openings, and cani means for actuating said second set of punches.

VIn 'testimony whereof, We our signatures. Y

JOHN R. FLEMING. v EDMUND M. WINEGAR.

hereunto aiix 

